Numbers / 386
The Number 386
386 is composite: factorization 2 × 193. That gives 386 exactly 4 divisors: 1, 2, 193, 386. 386's proper divisors total just 196, 190 short of 386, the deficient case most of 386's neighbors share too. 386 has a digit sum of 17; for 386, the digital root works out to 8. 386: 2 all divide 386 evenly, out of 2-12. 386 is 110000010 in binary and 182 in hex; as a Roman numeral it's CCCLXXXVI.